Water-heater for stoves



(No Model.) 2 Sheets-Sheet 1.

J. M. CARSON.

WATER HEATER FOR STOVES, RANGES, 0R EURNAGES. No. 453,855. Patented June9,1891.

f da! o V4@ l//y .l f l\ o? 5a;

'l yi\\\\\\.w\\\w Q, Q/

(No Model.) 2 Sheets-Sheet 2. J. M. CARSON. WATER HEATER FOR STOVBS,RANGES, OR PURNAGES.

Patented June 9,1891.

UNiTnn STATES PATENT OFFICE.

JOHN M. CARSON, OF DANVILLE, ILLINOIS.

WATER-HEATER FOR STOVES, RANGES, OR FURNACES.

SPECIFICATION forming part of Letters Patent No. 453,855, dated June 9,1891.

Application iiled September l, 1890. Serial No. 363,633. (No model.)

To all 'whom it' may concern,.-

Be it known that I, JOHN M. CARSON, a citizen of the UnitedStates,iesiding at Danville, in the county of Vermilion and State ofIllinois, have invented certain new and useful Improvements inVater-Heaters for Stoves, Ranges, Furnaces, die.; and I do herebydeclare the following` to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to water-heaters employed in connection with stovesor ranges, and in other localities; and it consists in a heater-pipeconstructed with a central longitudinal perforated diaphragm, wherebythe water is caused to flow downward on one side and upward on the otherside of the dia phragni and thereby heated and circulated in the onepipe, which pipe is adapted to be applied in the lire -chamber of astove or range, or in other locality where it is immersed in heat.

It also consists in certain novel constructions, arrangements, andcombinations of the parts of which the heater is composed, ashereinafter described, and pointed out in the claims, whereby sedimentswhich may deposit upon the interior surfaces of the heaterpipe can bescraped off and stirred up preparatory to their being discharged orforced out, and whereby the diaphragm can be removed without disturbingthe heater-pipe and its connection with its supply and discharge pipes.

In the accompanying drawings, Figure l is a central vertical section ofmy improved heater-pipe. Fig. 2 is an elevation of the diaphragmdetached from the pipe, and Fig. 3 is a transverse section of theheater-pipe with diaphragm in the line .fr c of Fig. l. Fig. 4 is anillustration of the invention as applied in a stove or range, and Fig. 5is an illustration of the same as applied in the exhaustpipe of asteam-engine.

The letter A in the drawings represents the heaterpipe, B its diaphragm,and C a stuffing-box.

The heater-pipe A is made, preferably, of ordinary wrought-iron tubingof such dimensions as will answer the purposes for which thetraten-heater is to be employed. This pipo is closed at the end by meansof an ordinary screwcap ct or by any other suitable means. The other endof the pipe A is provided with a branching' head a', which receives anddischarges the water by means of two branch formations a2 d3. In the topof the head a a stufiing-box C is formed. This stuffing-box C consistsof a screw-threaded head c, a gland c, and packing-chamber c?, the headc being fitted by means of a screw-thread c3 to the screw-threaded topportion a4 of the head a', and bearing upon the top surface of thegland, as shown. A round shank h, fitted by means of a notch b5 to thetop of the diaphragm B, passes through said stuffing-box, and terminateswith a transverse tubular head b above the same.

The diaphragm B occupies a centralposition in the pipe A, the interiorof which pipe is thereby divided into two equal chambers b2 b3, whichcommunicate with each other by means of apertures b4 in the diaphragm,near the end portion thereof. A cylindrical end portion h6 is providedon the diaphragm, and the same is inserted into a central bearing of adisk a5 at the bottom of the pipe A. The branch formations of the head aare provided with outer screw-threads a, by means of which they areadapted, respectively, to be connected to supply and discharge pipes,which pipes are not illustrated. The water enters from a supply-pipe thebranch a2, descends into the chamber h2, on one side of the diaphragm B,passes through the apertures b4 into the chamber b3 on the other side ofthe diaphragm B, where it returns to the branch a3, and is conductedtherefrom by a suitable discharge-pipe. (Not shown in the drawings.) Inthe chambers d2 a3 of the pipe the water is heated by the iames of astove, range, or furnace, as illustrated in Fig. 4, or by theexhaust-steam of a steam-engine, as illustrated in Fig. 5, to which thepipeAmay be arranged to be exposed.

In most cases a single pipe, as A, will be sufiicient for heating asupply of warm or hot water for ordinary household purposes; but incases where a larger amount of hot water is required several pipes, asA, arranged in a row and coupled together by means of their branches a2a3 and suitable ordinary .pipe-joints may be provided, or a IOO singlepipe A of increased size might answer all demands.

When it is found necessary to remove from the pipe A any accumulatedsediment lodged upon the interior surfaces of the heater, the head b ofthe shank b is revolved several times backward and forward, carryingwith it the diaphragm B, and causing it by its tapered edges to scrapeoff the sediment from the inner surface of the cylinder, and alsoagitate the water in such manner as to cause the sediment to be washedaway from said surfaces, and this accomplished, the mixed water andsediment is discharged through the portion a3 of the heater-pipe. When,by the discharge of clear water, a clean condition of the heater isindicated, the diaphragm is readjusted to its normal position, as shownin Figs. l and 3, and the heater thus again made ready for use.

In Figs. l and 3 the edges b7 of the diaphragm are shown tapered orsharpened, and this construction is found more efective in scraping offthe sediment-from the interior surface and less liable to become chokedor wedged by Acontact With the tougher portions of the sediment thanwould a diaphragm with edges which are not thus reduced in thickness. Incases Where the water used is comparatively free from sediment adiaphragm of uniform thickness or without tapered edges could be usedeffectively. In order to remove the diaphragm from the heaterpipe thescrew-cap a is removed and the diaphragm pulled out of the notch b5 ofthe shank b and out of the pipe A.

From the foregoing description it will be seen that a water-heater oftheimproved construction herein described possesses many advantages overother water-heaters new used in kitchens and other places, in that itLcan be cleaned of sediment without being disconnected from its supplyand discharge adj uncts or pipes and without serious interruption of itsmain functions, that its construction is very simple and comparativelyinexpensive, and that its jointed parts can be placed out of directcontact With the re, and thus the burning out of said parts andconsequent leakage avoided. As represented in Figs. l and 2, the heaterA is in a vertical position, this being only one of many availablepositions in which it may be used. It will, however, operate Well in aninclined or horizontal position, as in Fig. 4, or in an inclinedposition, or in a position with its head portion downward. Y'

The heater is adapted for immediate application to almost any style of astove, range, or furnace, and can be applied without much extra labor,which is not the case with other constructions which combine cast-ironheating-boxes or water-backs and return-pipes connected by U-joints..

What I claim as my invention isl. A water-heater consisting of aheatingpipe A, having branches a2 a3, and a central longitudinaldiaphragm B, having communication-apertures b4 through it, substantiallyas described.

2. A Water-heating pipe having inlet and outlet passages at its top, anda longitudinal rotary movable diaphragm, having communicating passagesthrough it and provided with means for operating it from the outside ofthe heating-pipe, Said diaphragm serving for dividing the pipe into twochambers, allowing circulation of water from one chamber to the other,and asV a means for scraping the sediment from the inside of the pipe,substantially as described.

In testimony whereofI hereunto affix my signature in presen ce of twowitnesses.

JOHN M. CARSON. 'Witnessesz J. D. CUMMINGS, GEO. BOYER.

